diff --git a/backup.nix b/backup.nix
index 26e6d8a..f7fe9f2 100644
--- a/backup.nix
+++ b/backup.nix
@@ -26,8 +26,8 @@ in {
 
     restartIfChanged = false;
     unitConfig.X-StopOnRemoval = false;
-    unitConfig.User = user;
 
+    serviceConfig.User = user;
     serviceConfig.Type = "oneshot";
 
     startAt = "weekly";